Coal breaker



G. W. BORTON May 2, 1933.

GOAL BREAKER Filed Nov. 24 1930 2 Sheets-Sheet INvnN'roR: Gunner: W. oR'rolg A w@@ M.

G. W. BORTON May .2, 1933.

GOAL BREAKER Filed Nov. 24, 1930 2 Sheets-Sheet 2 m o m v m Patented 2, I.

' enonenw. norvron. or imwiasnon, NEW masntnssrenoa'ro PENNSYLVANIA;

' CRUSHER COMPANY, OF NEW YORK, N.;Y. A CORPORATION .OZENEW YORK V a 'coAL' RE KuB;

Applicatibn flled lq 'ovemb er 24; 1930. Seria1 No. 497 ,86 1.

My invention relates to apparatus for breaking coal,f more particularly structures of the type familiarly'known as Bradford breakers, instances of which. are found in 5 the Borton and Hiller Patent, No. 1,086,129, dated Feb. 3,1914, and in 'the Hiller Patent,

No. 1.322.568. dated N v.- 25, 191-9.,

The material to be broken or reducedin' breaker structures of this type isfamiliarly i0 known as run-of-mine coal which includes the" fines of such material broken during the loading operation and/or in transit and lumps ofvarying size. Run-of-mine coal includes foreign material in the "shape of sulphur balls, pieces of slate and; to a greater eign material: and/or tramp iron trapped and collected at a suitable point with-* or less degree, pieces of iron in the" shape of bolts, spikes'and other fragments commonly met -with in railroad practice which of course F 7 cannot be broken and such foreign imaterial feeds forward with'thecoal ,thatis being reduced in size. ItAis desirableto collect this: foreign material for periodic discharge, pref-1 j erably in a space within the'drum that/is I clear of the lifting 'shelves'usually employed in these structures, and I provide such space by disposing a diaphragm at-the end ofthe cylinder or drumopposite the feed end and a short distance from a wall which closes such end, I One object; of'my: present invention therefore is to provide means whereby such forin the drum or cylinder; I Y 7 A furtherobject of my invention is to provide means for collecting such foreign material and/or tramp iron at theend of the cylinder opposite the feed end.

And a still further object of my invention provide asupplementalwall within the crushing chamber of the breaker structure at the end of the cylinder opposite the" feed end; such supplemental wall being substancrushing chamber, and spaced a suitable tially circularjin contour;'slightly less in diameter than the internal" diameter of the 'ta-nce from the end wall.

In additionthis plate or wall is preferablyrecessed at its 'edge'so as to provide an open ing for 'the 'passage of tramp iron and/or may be mental wall ay be in one pieceor section,

or itrnaybe-b'uilt upof av plurality of sec tions; either form beingwithin the scope of] my invention.

These and other features of my in'vention are more fully described hereinafter; referv ence being had to the accompanying draw-- ings', in which: t

Figure 1 is a longitudinal section of a breaker structure within the scope of myiin- .ve'ntion, having a supplemental wallet-one end of thecrushing chamber. r

Figs. 2 and 3' are-end elevations. Fig. 2' showing a part of thecylinder in section, illustrating forms of supplementalwalls Iwhich I may employ, and 1 Figs. 4 and 5 are views illustrating'forms of plows whichmay'beemployed with the supplemental wall.)

' Goal breakers of ent improvements have been applied com prise in generala cylinder or drum made up offa su table. frame and a foraminous wall;

the whole being mounted for rotation. In

made" upv of "sections or sets of apertured platesset circumferentially,' which plates- 86 the presentanstance'I have -shown a wall may be provided with'edge'fianges disposed I in lapped relation and assembled to form the cylinderof the breakerstructure. It will limited to the 'useof plates of the type illus tratedi'in the constructionof thebreaker drumsor cylinders with whichthe improvem'ents formingthe subject-of my presentinvention maybe employed- 3 p i As illustrated in the a'ccompanyingdrawings, the cylinder may-comprise a frame or. splder 1 at one end, a closed frame or wall 2 at the opposite end, and longitudinalmem of rail type'if desired, connecting these parts. Arranged internally ofthe beams 3 and conbe understood of course that while such "platesjare, preferred, I do not wish tobe 'bers in the form of I-beams 3,'which maybe p 78' he type to which my'pres-T fined thereto by suitable bolts are sets of foraminous plates 4 which make up What may be termed the screen portion of the breaker drum or cylinder; said plates being preferably lapped at their points of engagement and bolted or otherwise secured to each other or to said beams. p

The drums or cylinders of structures of this type are usually provided with lifting shelves as indicated at 5, and such shelves may eX-tend'substantially the full length of the same; being either of sectional construction or continuous members. In practice these shelves are preferably disposed opposite certain of the beams extending longitudinally of the drum or cylinder and they may be secured to said beams by the fastening means employed for holding the plates thereto, or in any other suitablemanner; The

inner surfaces of the cylinder wall may be provided with deflectors 6, which may be of the type illustrated in the patent of Plimpton, No. 1,700,687; such deflectors being set at a suitable angle so that the material fed into one end of the cylinder, in the present instance at the left end of the same, may be moved toward the opposite end of the cylinder as the latterrotates; in the present instance such material moving toward the right. I

Coal breakers of this type are usually mounted upon trunnions, and these are indicated at 7 and 8 in Fig. 1; one trunnion being carried by the frame or spider 1 while the other is carried by the wall 2 at the opposite endof the cylinder. These trunnions may be supported by suitable bearings 9 and 10 in which they are rotatably mounted.

In carrying out my present invention I propose to locate a supplemental wall or d aphragm within the crushing chamber ad]acent to the closed end 2 of the same.

Such supplemental wall or diaphragm may be in the form of a circular plate 12, mounted 2 on stud bolts 13, or otherwise, and disposed about twelve inches from the closed end wall 2 and parallel therewith. This endplate or diaphragm 12 should be spaced a slight distance from the screen plates 45, as indicated 0; at a:, and the extent of such spacing depends compartment or space between said plate or upon the character of the discharge apertures formed in the screen plates; The edge of the plate or diaphragm 12 is preferably notched or recessed as indicated at 14:; the size of 1 such opening being approximately fourteen by twenty inches, more or less, to permit a discharge plow 15, which may be mounted in theposition illustrated in Figs. 2 and 4, to feed tramp iron and/or the like into the diaphragm 12 and the end wall 2 of the cylinder or drum. This plow may be an independent member secured to the plate 12 and the wall of the cylinder in the manner indicated, or in some instances I may employ part of the plate removed to form the opening 14 as an integral plow, as indicated at 15*, Figs. 3 and 5. The plate 12 forming the supplemental wall or diaphragm may be continuous, as illustrated in Fig. 2, or it may be provided with an opening 12*, centrally disposed, as illustrated in Fig. 3. Such opening would permit an overflow of the material trapped behind the plate 12 in case the space became clogged.

In action, any tramp iron or other foreign material carried through the breaking chamber from the feed end of the cylinder will be finally caught by the plow and diverted into the compartment or space between said plate 12 and the end Wall 2. It will be obvious of course that coal and foreign material, refuse and the like, will also be caught by the plow and diverted into the space behind the plate 12 with the tramp iron. This space is preferably free of the lifting shelves 5 and all of this trapped material will ride with the motion of the breaker cylinder to a certain exmakethe surface of this space relatively smooth, the heads of the bolts securing the screen plates to the longitudinal members may be flush with said plates.

' The provision of the plate 12 forming a supplemental wall or diaphragm spaced from the closed end wall 2 of the breaker. chamber will definitely entrap tramp iron, and any coal entrained therewith will be broken down and either discharged through the apertures'in the screen plates 4 or escape under said plate 12 to the main chamber. Additionally, the presence of the tramp iron will break down any friable refuse present which can not stand the gradual rumbling process and per mit discharge through the screen plates. My improved construction avoids all danger of damage to the breaker structure which might arise from the tumbling of entrained iron in a breaker structure having a closed end.

Periodically, depending upon the amount of tramp iron and/or other foreign material collecting, the operator will have to empty the space between the plate 12 and the end wall 2. This may be done by providing a hinged connection for one or more of the screen plates forming the circumferential wall of the space between the supplemental wall or diaphragm 12 and the end wall 2 of the breaker wall; said cylinder'being open at one end and having a wall closing its opposite end, and a may be provided in said end wall 2; such opening being normally closed by a door 2,

I claim: a

thereby; said cylinder being open atone end and having a wall closing its opposite end, 1 v I H r r end and a closed wall at its opposite end, of a of a supplemental wall ordiaphragm disposed within said cylinderand spaced a short distance from the closed end of the same; said supplemental diaphragm being carried by the end closing wall and circumferentially spaced from the perforated plates forming the cylindricalwall of the coal'breaker. v

2. The combination, ina coal breaker, of a cylinder made up of a frame-work mounted for rotation and a wall of perforated plates said cylinder being open at one end and hav inga Wall closing its opposite end, and a sup- L, plemental wall or diaphragm disposed within and spaced a' short distance 25 from the closedend of the same; said'supsaid cylinder plem'ental diaphragm being, carried by the end closing wall and circumferentially spaced from the perforated plates forming the cylindrical wall of the coal breaker. r

3. The combination with a .coal breaker comprising a rotatable cylinder made up of a frame-work and a series of perfoirated plates connected thereto and forming the circumferential wall; said cylinder being open at one end andhaving a wall closing its opposite end, and a circular plate having a central opening and spaced a short distance from the closed endof the cylinder; said circular plate being carried by the end closing wall and circumferentially spaced from the perfo rated platesforming the cylindrical wall of the coal breaker. I

, 4. The combination,

and a series of perforated plates connected thereto and forming the circumferential circular plate having a central opening se-t cured to said structurefandspaced a short.

distance from the closed end of the cylinder; said circular plate being carried by the end closing wall and circumferentially spaced from the perforated plates forming the cylindrical Wall of the coal breaker.

5. In a coal breaker, the combination with a rotatable cylinder comprising a suitable frame including longitudinal members and,

perforated plates secured thereto and form ing the circumferential wall :of said cylinder; the latter having a feed opening at one end and a closed-wall at its opposite end, of a circular plate located within said cylinder and spaced a short distance from the closed end of thesame; said plate being carried by said closed endout of contact with the perfo a coal: breaker, of a rotatable cylinder made up of a frame-work 6. Inacoal-breakenthe combination with a rotatable cylinder f comprising-1a suitable frame. including longitudinal members and perforated platessecured thereto and forming-the circumferential wall of said cylinder;-the latter having a vfeed: opening at one circular plate located within isaid cylinder and spaced'a short 7. In a coal breaker, the combinationiwith distance from the closed, end of the same; saidplate being-notched at its outer edge and the space defined there 'by being free from lifting and deflecting means, and a plow associated with s'aidplate [adjacent such,notch. V

a rotatable 1 cylinder comprising a suitable frame including longitudinal members and perforated plates secured thereto and forma ing thecircumferential wall of said cylinder; A said cylinder having a feed openingat one 'end and a closed wall at its opposite end, of

a circular plate disposedwithin said cylinder ,said plate being "spaced a short distance from the closed'end of the same and positioned to provide anannular space between its marginal edgeand the perforated plates forming/the wall of saidcylinder; the end space defined by said circular plate being free from lifting and deflecting means.

- 8. In a coal breaker, the combination with; a rotatable cylinder comprising a suitable frame including longitudinal members and perforated plates secured thereto and formv ing the circumferential wall of said cylinder; said cylinder having a feed opening at one end anda closed wall at its opposite end, of a circular plate disposed within ,said cylinder;

said plate beingcdisposed a short distance;- from the closed end of thesame and having its marginal edge notched or recessed and circumferentially spaced from theperforated plates forming the wall cofsaid cylinder and the space betweenlsaid circular plateand the closed wall of the cylinder being, free from;

lifting anddeflecting means, and a plow arranged to divert' material through said notched portion of said plate.

9. In a coal breaker, the combination of a rotatable cylinder comprising a suitable frame including longitudinal members and perforated plates secured thereto and forming the circumferential wall'of said cylinder said cylinder: having a feed opening at one endand a closed wall at its opposite end,-and

a circular plate disposed within said cylinder and spaced a short distancefromthe closed end of the same; said plate forming a space free from lifting and deflecting means:

for the collection of tramp ironand the like and being notched-at its edge to permit the passage of such trampiron into the space de fined by such plate. a

- 10. In a coal breaker, the combination of a rotatable cylinder comprising a suitable frame including longitudinal members and perforated plates secured thereto and forming the circumferentialwall of said cylinder; said cylinder having a feed opening at one end and a closed Wall at its opposite end, a circular plate disposed Within said cylinder and spaced a short distance from the closed end of the same; said plate forming a space for the collection of tramp iron and the like and being notched at its edge to permit the passage of such tramp iron into the space defined by such plate, and a ploW associated with such plate to divert material intov the space defined thereby.

In Witness whereof I have signed this specification;

- GEORGE W. ,BORTON. 

